Every tracked fact about the two, side by side - prices, history lows, ratings and measured tuning. No verdict: which one to buy is the visitor's decision, always.
Both sides are in-ear monitors. The rows below are the facts each store publishes for this shelf - driver arrangement, impedance, sensitivity, plug and connectivity. A dash means the listing does not state that spec.
Spec7Hznf
ConnectivityWiredWired
Plug3.5mm—
Measured tuning, side by side
Both curves are real community measurements (gold: 7Hz · blue: nf). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.
7Hznf
Average level per band, relative to that curve's own 200 Hz–1 kHz middle - a taller bar plays louder there on the measured files. Same colours as the chart above.
Wearing your own earphones or headphones? Pick them here and the player pre-corrects for their sound, so the demo plays the target tuning itself - not both mixed together.
Same signal through both tunings at once - slide to blend. Start on pink noise for the clearest read.
Tuning distance±2.13 dB RMS87% match - Very close. Computed on a shared 40-point log grid, 20 Hz–10 kHz. A measurement-space fact, not a promise two ears agree.
Bass · 20–250 Hz7Hz +1.1 dBAverage level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means 7Hz plays louder there on the measured files; minus means nf does.
Mids · 250–2,000 Hz7Hz −0.2 dBAverage level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means 7Hz plays louder there on the measured files; minus means nf does.
Treble · 2,000–10,000 Hz7Hz −1.8 dBAverage level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means 7Hz plays louder there on the measured files; minus means nf does.
What a curve cannot seeBuild, driver QC unit-to-unit, comfort, isolation, accessories, warranty and resale value sit outside the graph - usually what the pricier one is charging for.
Price over the last 30 days
Daily lowest price across every tracked store, from the site's own price history. The line is one product's own range - the two cards are not drawn to a shared scale.
7HZ FIVE - 3.5mmNow ₹10,9905% above its 30-day medianLowest on record ₹127 on Wednesday, 4th Nov, 2026In stock at 3 tracked stores
NF ACOUS - NM20 - BlueNow ₹7,499at its 30-day medianLowest on record ₹7,499 on Saturday, 12th Sept, 2026In stock at 1 tracked store
Price gap right now₹3,49132% of the dearer one's price.
Stores with it in stock3 vs 1Active stores carrying each one right now - more stores usually means easier replacement and a steadier price.
The decision, factually
Cheaper right nowNF ACOUS - NM20 - BlueLowest current price across all tracked stores - ₹7,499 vs ₹10,990.
Deepest discount ever seen7HZ FIVE - 3.5mmFrom each product's own recorded price history.
This page reports facts and expresses no opinion on which to purchase.
Pick what this is, write it out, send - it lands in the right inbox and gets read.
The inbox is part of a free account - it keeps spam out and lets an answer reach you. Make one (takes a minute, free forever), then come back: this link sits at the bottom of every page.
7HZ FIVE - 3.5mm
7Hz
Lowest on record ₹127 on Wednesday, 4th Nov, 2026
★★★★☆ 4.3 4.3 · 4 reviews
Full prices & history
